E.164

The international phone number format: a plus sign, the country code, and the national number, with no spaces, such as +18889262289.

Definition

What E.164 means

E.164 is the ITU standard for international telephone numbers. A number in E.164 starts with +, then the country calling code, then the subscriber number, up to 15 digits in total, with no spaces, dashes, or brackets.

Websites print phone numbers in local styles: (888) 926-2289, 0888 926 2289, +1 888-926-2289. Stored as printed, the same number looks like several, and dialers, SMS services, and CRMs reject some of them. Converting every number to E.164 on the way in makes them comparable and dialable.

Clair's Website Contacts API returns each phone as e164, next to raw (the number as the site printed it) and the country it belongs to.

In the data

How it appears in a response

GET /v1/contacts?domain=stripe.com · phones.0

{
  "e164": "+18889262289",
  "raw": "+1 888 926 2289",
  "type": "phone",
  "country": "US",
  "sources": [
    "https://stripe.com/"
  ]
}

A phone number from stripe.com, as printed and in E.164. From a recorded Website Contacts API response.

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Glossary